feat: prover node metrics

[alexghr]

Tracks block proving duration

[AztecBot]

Benchmark results

Metrics with a significant change:

• protocol_circuit_simulation_time_in_ms (private-kernel-tail-to-public): 763 (-49%)
• avm_simulation_time_ms (FeeJuice:set_portal): 9.58 (-33%)
• avm_simulation_time_ms (Token:mint_public): 44.6 (-35%)
• avm_simulation_time_ms (Token:assert_minter_and_mint): 65.8 (+63%)

Detailed results

All benchmarks are run on txs on the Benchmarking contract on the repository. Each tx consists of a batch call to create_note and increment_balance, which guarantees that each tx has a private call, a nested private call, a public call, and a nested public call, as well as an emitted private note, an unencrypted log, and public storage read and write.

This benchmark source data is available in JSON format on S3 here.

Proof generation

Each column represents the number of threads used in proof generation.

Metric	1 threads	4 threads	16 threads	32 threads	64 threads
proof_construction_time_sha256_ms	5,795	1,565	710	746 (-2%)	774 (+1%)
proof_construction_time_sha256_30_ms	11,555	3,092	1,380	1,432	1,466
proof_construction_time_sha256_100_ms	44,379	11,859 (-1%)	5,425	5,592 (+2%)	5,734 (-1%)
proof_construction_time_poseidon_hash_ms	79.0 (+1%)	34.0	34.0	57.0 (-3%)	87.0
proof_construction_time_poseidon_hash_30_ms	1,534	424	203	225 (-1%)	270
proof_construction_time_poseidon_hash_100_ms	5,664	1,517	675 (-1%)	737 (-1%)	748

L2 block published to L1

Each column represents the number of txs on an L2 block published to L1.

Metric	4 txs	8 txs	16 txs
l1_rollup_calldata_size_in_bytes	4,324	7,844	14,852
l1_rollup_calldata_gas	49,696	92,464	177,656
l1_rollup_execution_gas	1,373,724	2,107,388	3,892,636
l2_block_processing_time_in_ms	250	447 (+1%)	823 (-1%)
l2_block_building_time_in_ms	8,977	17,459	34,827 (-1%)
l2_block_rollup_simulation_time_in_ms	8,976	17,459	34,827 (-1%)
l2_block_public_tx_process_time_in_ms	7,548 (-1%)	15,938	33,286 (-1%)

L2 chain processing

Each column represents the number of blocks on the L2 chain where each block has 8 txs.

Metric	3 blocks	5 blocks
node_history_sync_time_in_ms	2,942	3,927 (+3%)
node_database_size_in_bytes	12,603,472 (-1%)	16,715,856
pxe_database_size_in_bytes	16,254	26,813

Circuits stats

Stats on running time and I/O sizes collected for every kernel circuit run across all benchmarks.

Circuit	simulation_time_in_ms	witness_generation_time_in_ms	input_size_in_bytes	output_size_in_bytes	proving_time_in_ms
private-kernel-init	84.7 (-9%)	380 (+1%)	21,755	44,860	N/A
private-kernel-inner	173 (+1%)	682 (+2%)	72,566	45,007	N/A
private-kernel-reset-tiny	461	853 (+1%)	65,675	44,846	N/A
private-kernel-tail	195	157 (+5%)	50,686	52,257	N/A
base-parity	5.56	N/A	160	96.0	N/A
root-parity	35.2	N/A	73,948	96.0	N/A
base-rollup	2,755	N/A	189,136	664	N/A
root-rollup	40.0	N/A	58,173	716	N/A
public-kernel-setup	85.0 (+2%)	N/A	105,085	71,222	N/A
public-kernel-app-logic	94.9	N/A	104,911	71,222	N/A
public-kernel-tail	550	N/A	410,534	16,414	N/A
private-kernel-reset-small	456 (+1%)	N/A	66,341	45,629	N/A
private-kernel-tail-to-public	⚠️ 763 (-49%)	627 (+1%)	460,796	1,825	N/A
public-kernel-teardown	82.1	N/A	105,349	71,222	N/A
merge-rollup	20.2 (+1%)	N/A	38,174	664	N/A
undefined	N/A	N/A	N/A	N/A	82,960 (+2%)

Stats on running time collected for app circuits

Function	input_size_in_bytes	output_size_in_bytes	witness_generation_time_in_ms
ContractClassRegisterer:register	1,344	11,731	340 (-1%)
ContractInstanceDeployer:deploy	1,408	11,731	18.1 (-1%)
MultiCallEntrypoint:entrypoint	1,920	11,731	404 (-1%)
FeeJuice:deploy	1,376	11,731	391 (-2%)
SchnorrAccount:constructor	1,312	11,731	73.9 (-2%)
SchnorrAccount:entrypoint	2,304	11,731	408 (-1%)
Token:privately_mint_private_note	1,280	11,731	105 (-3%)
FPC:fee_entrypoint_public	1,344	11,731	29.3 (+15%)
Token:transfer	1,312	11,731	226 (-1%)
Benchmarking:create_note	1,344	11,731	85.9 (-1%)
SchnorrAccount:verify_private_authwit	1,280	11,731	27.3 (-1%)
Token:unshield	1,376	11,731	527 (-1%)
FPC:fee_entrypoint_private	1,376	11,731	701 (-1%)

AVM Simulation

Time to simulate various public functions in the AVM.

Function	time_ms	bytecode_size_in_bytes
FeeJuice:_increase_public_balance	55.9 (-10%)	7,739
FeeJuice:set_portal	⚠️ 9.58 (-33%)	2,354
Token:constructor	78.3 (-8%)	26,051
FPC:constructor	53.1 (-3%)	18,001
FeeJuice:mint_public	39.1 (+1%)	5,877
Token:mint_public	⚠️ 44.6 (-35%)	10,917
Token:assert_minter_and_mint	⚠️ 65.8 (+63%)	7,512
AuthRegistry:set_authorized	48.6 (+3%)	4,391
FPC:prepare_fee	233	7,043
Token:transfer_public	20.6 (+7%)	39,426
FPC:pay_refund	58.3 (-2%)	10,234
Benchmarking:increment_balance	930	6,563
Token:_increase_public_balance	40.7 (+3%)	8,433
FPC:pay_refund_with_shielded_rebate	63.6 (-1%)	10,783

Public DB Access

Time to access various public DBs.

Function	time_ms
get-nullifier-index	0.164

Tree insertion stats

The duration to insert a fixed batch of leaves into each tree type.

Metric	1 leaves	16 leaves	64 leaves	128 leaves	256 leaves	512 leaves	1024 leaves
batch_insert_into_append_only_tree_16_depth_ms	2.17	3.84 (-2%)	N/A	N/A	N/A	N/A	N/A
batch_insert_into_append_only_tree_16_depth_hash_count	16.8	31.7	N/A	N/A	N/A	N/A	N/A
batch_insert_into_append_only_tree_16_depth_hash_ms	0.113	0.109 (-2%)	N/A	N/A	N/A	N/A	N/A
batch_insert_into_append_only_tree_32_depth_ms	N/A	N/A	11.6	17.6 (-3%)	30.2 (-2%)	58.9	114 (-2%)
batch_insert_into_append_only_tree_32_depth_hash_count	N/A	N/A	95.9	159	287	543	1,055
batch_insert_into_append_only_tree_32_depth_hash_ms	N/A	N/A	0.111	0.102 (-3%)	0.0986 (-2%)	0.101	0.102 (-2%)
batch_insert_into_indexed_tree_20_depth_ms	N/A	N/A	14.1 (-2%)	25.6 (-1%)	42.8 (-1%)	83.3 (+1%)	162 (-2%)
batch_insert_into_indexed_tree_20_depth_hash_count	N/A	N/A	109	207	355	691	1,363
batch_insert_into_indexed_tree_20_depth_hash_ms	N/A	N/A	0.107 (-2%)	0.103 (-1%)	0.104 (-1%)	0.103	0.104
batch_insert_into_indexed_tree_40_depth_ms	N/A	N/A	16.3	N/A	N/A	N/A	N/A
batch_insert_into_indexed_tree_40_depth_hash_count	N/A	N/A	132	N/A	N/A	N/A	N/A
batch_insert_into_indexed_tree_40_depth_hash_ms	N/A	N/A	0.105	N/A	N/A	N/A	N/A

Miscellaneous

Transaction sizes based on how many contract classes are registered in the tx.

Metric	0 registered classes	1 registered classes
tx_size_in_bytes	64,779	668,997

Transaction size based on fee payment method

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